The plasma effect on the performance of high-turning compressor cascade was investigated at different incidence angles

voltages and electrodes locations.The results show that

with the increase of the incidence angle

the aggravation of the flow separation is a primary reason for the increase of the cascade losses

while the boundary layer losses near the end-wall decrease due to the reduction of the flow velocity.At all the incidence angles (i=0°

5°

-5°)

the plasma actuator could weaken the separation

reduce the cascade losses and increase the blade loading effectively.The bigger the voltage and the closer the electrodes to the separation line

the more obvious the plasma effect becomes.And the bigger incidence angle leads to weaker plasma effect.Although the electrodes are installed along the whole blade height

the plasma merely reduces the losses in the region above 10% blade height

and the loss reduction is almost the same in this zone.